Speaker cable length with monoblock amps?

Ok, maybe, so what is your point?

I have been running my system in different incarnations for 20 years and the one constant was my 22 foot long pair of speaker cables.  Both the speaker manufacturer and amp manufacturer told me there was "no problem" with the lengths of wire.

The idea that speaker cables have to be a certain minimum length strikes me as an audiophile myth too - it likely arises because people who do not understand physics have confused cables with extremely high freq. waveguides used in microwave, radar, etc.

just like 'skin effect' another red herring

Sure Geoff, draw me a picture....draw me a pint while you are at it :-)
I miss Bob over on Audio Asylum.   I am not convinced his 5-foot cable philosophy is correct but he certainly had a sort of down home way of looking at things and a good wit.  He might have had fun with some of the current cable and fuse threads around here.  Gone too soon.